Products · Instrument air
Industrial Instrument Air Systems
Clean, dry compressed air packages for pneumatic instruments, control valves, and process air. Filtration train + TBAD™ desiccant drying sized to your flow, pressure, and dew-point specification.
Instrument air is a plant utility, not a commodity afterthought. Zenox packages combine particulate/coalescing filtration, optional activated carbon treatment, and TBAD™ tri-bed desiccant drying so control systems and process air see stable pressure and moisture. The TBAD™ dryer at the heart of the package is also available as a standalone unit for buyers who only need drying. Packages integrate cleanly with on-site nitrogen generation systems and industrial oxygen plants — including oil-free air compressor for gas generator feed trains when hydrocarbon control is required. Designed for industrial plants — manufacturing, chemical, mining, power auxiliaries, and general process industry.
Integrated air treatment and gas generation process flow
Design envelope
Confirm project-specific limits during RFQ.
| Parameter | Capability / approach |
|---|---|
| System elements | Pre-filters · mist elimination · carbon tower (as required) · TBAD™ dryer · receiver |
| Dew point options | Typical design points −20 °C / −40 °C / −70 °C class (confirm at RFQ) |
| Air quality target | ISO 8573 classes as specified by client |
| Flow | Sized to instrument air peak and average demand |
| Pressure | Plant instrument air header pressure per spec |
| Vessels | ASME air receivers available as part of package |
| Controls | Dryer PLC/HMI; dew-point monitoring options |
| Integration | Stand-alone instrument air or feed-air quality for N₂/O₂ generators |
Configurations
- Complete instrument air skids
- Dryer + filter train retrofits on existing compressors
- High-spec trains for oil-vapor sensitive users
- Packages feeding nitrogen or oxygen generators
- With ASME air receivers and distribution headers (project scope)
Engineering & design
- Demand study: average and peak SCFM, diversity of users
- Dew point and ISO 8573 class definition
- Inlet temperature, pressure, and ambient design basis
- Oil-lubricated vs oil-free compressor interface
- Receiver sizing for demand swings
Inspection & testing
Activities aligned to drawing notes, code, and client ITP.
| Activity | Notes |
|---|---|
| Leak / pressure test | Piping and vessels per code |
| Dryer functional test | Valve sequence and regeneration |
| Dew point verification | As agreed at FAT or site |
| Documentation | As-builts, vessel certs, IOM |
Documentation deliverables
- [ ]P&ID / package schematic as agreed
- [ ]GA drawings
- [ ]Filter and dryer data sheets
- [ ]Vessel ASME documentation when applicable
- [ ]Operation and maintenance manuals
- [ ]Recommended spares (elements, desiccant, valves)
Typical applications
Related
Submit design conditions for a quote
Include flow, purity, pressure, materials, code, quantity, and drawings when available.